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- W137222421 abstract "The physical characteristics of a clinical amorphous silicon-based flat-panel imager for full-field digital mammography were investigated. Pre-sampled modulation transfer functions (MTF) were measured by using a slit method. Noise power spectra were determined for different input exposures by fast Fourier transform. The MTFs of full-field digital mammography systems showed significantly higher values than those of the computed radiography (CR) system. The full-field digital mammography system showed a lower noise level than that of the CR system under the same exposure conditions. Contrast detail analysis has been performed to compare the detectability of the full-field digital mammography system with that of the screen-film (Min-R 2000/Min-R 2000) system. The average contrast-detail curves of digital and film images were obtained from the results of observation. Image quality figures (IQF) were also calculated from the individual observer performance tests. The results indicated that the digital contrast-detail curves and IQF, on average, are superior to those of the screen-film system." @default.
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- W137222421 date "2004-01-01" @default.
- W137222421 modified "2023-10-01" @default.
- W137222421 title "Full-field Digital Mammography with Amorphous Silicon-based Flat-panel Detector : Physical Imaging Characteristics and Signal Detection" @default.
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- W137222421 doi "https://doi.org/10.6009/jjrt.kj00000922344" @default.
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